| Classification | Acanthaceae |
| Classification 1 | Acanthaceae: Thyrsacanthus |
| Classification 2 | Acanthaceae |
| Classification 3 | Acanthaceae: Stenostephanus |
| Classification 4 | Acanthaceae |
| Harvard University Herbaria Barcode(s) | 00093822 |
| Type Status | Isotype |
| Collector | R. Spruce |
| Collector number | 4371 |
| Country | Peru |
| State | San Martín |
| Geography | South America: South America (Region) (Region): Peru: San Martín |
| Locality | Prope Tarapoto Peruviae orientalis |
| Date Collected | 1855 - 1856 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8bb65ed8-5cc3-4de8-be72-673f3dcd663e |
| Harvard University Herbaria Barcode | 00093822 |
| Herbarium | GH |
| Family | Acanthaceae |
| Determination | Cylindrosolenium sprucei Lindau |
| Determined by | [annotation on sheet] |
| Family | Acanthaceae |
| Determination | InQuestion Thyrsacanthus sp. |
| Determination Remarks | [is label name] |
| Family | Acanthaceae |
| Determination | Cylindrosolenium sprucei Lindau |
| Determined by | Wasshausen, Dieter Carl |
| Date Determined | 1972-09-** |
| Annotation Text | Isotype |
| Family | Acanthaceae |
| Determination | Stenostephanus sprucei (Lindau) Wasshausen |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2015 |
| Determination Remarks | [is Current name] |
| Family | Acanthaceae |
| Type Status | Isotype |
| Isotype of | Cylindrosolenium sprucei Lindau |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2015 |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Cylindrosolenium sprucei Lindau) Bull. Herb. Boissier 1897. 5: 671. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
